Officials say sprinklers at California medical equipment warehouse didn’t work during blaze

Firefighters battling a massive warehouse fire in Northern California faced a critical setback when the facility’s sprinkler system and on-site hydrants failed to function during the Thursday afternoon blaze, authorities revealed Friday. The incident has raised serious questions about fire safety systems at large industrial facilities and could have ripple effects on medical supply chains across the region.

The fire broke out around 1 p.m. Thursday at a sprawling 1 million-square-foot warehouse in Tracy, a city located approximately 55 miles east of San Francisco. The facility, owned by Medline Industries, serves as a crucial distribution center for medical equipment and supplies to hospitals throughout Northern California.

When fire crews arrived at the scene, they immediately encountered flames on the roof and quickly discovered that no water was flowing from the building’s sprinkler system. Tracy Deputy Fire Chief Brian Bagley explained that a fire official found the pump responsible for pushing water through both the sprinklers and on-site hydrants was producing little to no water pressure.

The malfunction proved catastrophic. Firefighters were forced to scramble and connect their hoses to city hydrants instead of relying on the facility’s built-in fire suppression systems. Within just 40 minutes, the entire warehouse was engulfed in flames. Bagley described the challenge facing his crews in stark terms, telling reporters it was like battling a fire in “a skyscraper laying on its side.”

Authorities said Friday they have not yet determined why the water system failed, though initial assessments suggest the problem lay with the facility’s internal systems rather than the city’s water supply. This distinction is significant, as local fire codes typically mandate that large warehouses maintain functional hydrants and sprinklers as critical first-line defenses against fires.

Brian O’Connor, a licensed fire protection engineer with the National Fire Protection Association, emphasized the importance of on-site fire suppression systems for large facilities. He noted that stretching hoses from public hydrants to massive buildings can prove extremely difficult for firefighters, making internal systems essential for rapid response.

Adding to the mystery, Bagley revealed that an outside company had tested the sprinkler system as recently as January and found no issues. Fire officials were still gathering information Friday about the warehouse’s inspection history, though they confirmed that local fire departments conduct annual inspections of commercial buildings, including their water systems.

More than 24 hours after the fire began, crews were still working Friday to extinguish hot spots while contending with challenging conditions. Temperatures reached 95 degrees, humidity remained low, and winds continued to blow through the area. However, Bagley noted that firefighters had made significant progress, with smoke becoming lighter and less dense compared to earlier in the day.

Medline Industries, one of the nation’s largest medical-surgical product providers, operates more than 50 distribution centers across the country. The Tracy facility was a key hub in this network, storing and distributing essential medical equipment including latex gloves, masks, surgical instruments, bandages, wheelchairs, catheters, and hospital beds.

The company moved quickly to activate contingency plans following the fire. In a statement, Medline said it was redirecting product distribution to other facilities within its regional network to maintain service and meet customer needs. However, the full impact on Northern California’s medical supply chain remains unclear.

Mary Massey, who leads the hospital preparedness program at the California Hospital Association, said it was too early to assess the regional impact but noted that most medical service providers maintain cooperation agreements to secure urgent supplies when needed. She emphasized that hospitals, clinics, long-term care facilities, dialysis centers, public health agencies, and ambulance services regularly collaborate and plan for such emergencies.

The fire’s intensity created additional hazards beyond the warehouse itself. Embers traveled for miles, sparking two grass fires and igniting pallets and multiple big rig trailers at a nearby FedEx facility. Firefighters successfully contained those blazes, but overnight crews faced new fires in trailers loaded with supplies.

The warehouse sits within a massive industrial park that also houses fulfillment and distribution centers for major companies including Amazon, Home Depot, and FedEx, underscoring the concentration of critical infrastructure in the area.

The Bureau of Alcohol, Tobacco, Firearms and Explosives will assist with investigating the fire’s cause, though authorities said they likely won’t be able to enter the warehouse for several more days. No injuries were reported, as the facility was successfully evacuated.

While Bagley recommended that residents near the fire remain indoors as a precaution, air quality tests conducted Friday had not raised any serious concerns, officials said. City crews were working to clean debris from nearby streets as the community begins assessing the full scope of the disaster.